OCM-7117 | add capability of list resource with a scalar items

[mnecas]

Issue: The LoadBalncerQuotaValues returns a list of scalar items. Because of this the metamodel started generating not valid sdk.

Sample of the model:

resource LoadBalancerQuotaValues {
	method List {
            in out Page Integer = 1
            in out Size Integer = 100
            out Total Integer
            out Items []Integer
	}
}

When generating the go sdk from teh model we get a error:

output/clustersmgmt/v1/load_balancer_quota_values_client.go:162:12: expected type, found '.'
output/clustersmgmt/v1/load_balancer_quota_values_client.go:191:59: expected type, found '.'
output/clustersmgmt/v1/load_balancer_quota_values_client.go:194:6: expected declaration, found '}'
E: Can't format generated sources: exit status 2

This is caused by the metamodel not handeling the list scalar items properly. Because the metamodel generates the reposnse struct and some other struct in following format:

type  LoadBalancerQuotaValuesListResponse struct {
	status int
	header http.Header
	err    *errors.Error
	items  *.IntegerList
	page   *int
	size   *int
	total  *int
}

I have added a fix so it would generate the sdk structs with the list scalars.

// LoadBalancerQuotaValuesListResponse is the response for the 'list' method.
type LoadBalancerQuotaValuesListResponse struct {
	status int
	header http.Header
	err    *errors.Error
	items  []int
	page   *int
	size   *int
	total  *int
}

[ahitacat]

I have test this with this change in the model openshift-online/ocm-api-model#921 and it seems to work as expected.

[mnecas]

@jhernand could you ptal?

[jhernand]

Looks good to me, thanks @mnecas. And yes, would be good to update the version of Go.

[mnecas]

Thank you for the quick review!
I'll create a task for the bump